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| | Deyn, age 10, works with Don via IM, from WV (Site not responding. Last check: 2007-09-17) |
 | | Then Don showed Deryn the whole Nautilus shell he has in his math room, from which came a watercolor painting and from this, the picture on each of his books and his logo. |
 | | Deyn worked with patterns in the numbers (arithmetic), and in the graphs (geometry), and in the equations (algebra), she multiplied and added negative and positive numbers, made a 2-variable sentence true, checked to see if her answers were correct, and made up an equation to graph, by herself. |
 | | Don and Deryn continued work on equations for graphs #2 and #3 below: Deryn's second try was the equation 2x+4=y for graph #2, but when she tried the point (3,5), she found the sentence 2*3+4=5 was not true. |
| www.shout.net /~mathman/html/deryn.html (1522 words) |
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